ABSTRACT
Purpose
This study was conducted to characterize UV imaging as a platform for performing in vitro release studies using Nicorette® nicotine patches as a model drug delivery system.
Methods
The rate of nicotine release from 2 mm diameter patch samples (Nicorette®) into 0.067 M phosphate buffer, pH 7.40, was studied by UV imaging (Actipix SDI300 dissolution imaging system) at 254 nm. The release rates were compared to those obtained using the paddle-over-disk method.
Results
Calibration curves were successfully established which allowed temporally and spatially resolved quantification of nicotine. Release profiles obtained from UV imaging were in qualitative agreement with results from the paddle-over-disk release method.
Conclusion
Visualization as well as quantification of nicotine concentration gradients was achieved by UV imaging in real time. UV imaging has the potential to become an important technology platform for conducting in vitro drug release studies.
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ACKNOWLEDGEMENTS
This work was supported by the Danish Medical Research Council. JOE and EML thank LEO Pharma for financial support. JL thanks Yorkshire Forward for support through R&D Grant, project number YHF/02803/RD09.
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Østergaard, J., Meng-Lund, E., Larsen, S.W. et al. Real-Time UV Imaging of Nicotine Release from Transdermal Patch. Pharm Res 27, 2614–2623 (2010). https://doi.org/10.1007/s11095-010-0257-9
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DOI: https://doi.org/10.1007/s11095-010-0257-9